Tunnel for a transverse jet control device, transverse jet control device and watercraft with a transverse jet control device

摘要

Tunnel (10) for a transverse jet control device (100) for watercraft, wherein the tunnel (10) is designed to receive a propeller (13) and has two opposite tunnel openings (14) for inflow and / or outflow of water, the tunnel ( 10) is formed by a circumferential wall (11), viewed in the circumferential direction of the tunnel (10), characterized in that a coating (12) is provided at least in regions on the inside of the wall (11) of the tunnel (10), the coating (12) one or more elastomers or one or more thermoplastic elastomers or mixtures thereof, preferably in a proportion of at least 50% by weight, more preferably of at least 70% by weight, most preferably of at least 90% by weight, based in each case on the total weight of the coating (12), or wherein the coating (12) consists of one or more elastomers or one or more thermoplastic elastomers or M According to these calculations, the coating (12) extends in the circumferential direction of the tunnel (10) by at least 50% of the circumference of the tunnel, preferably by at least 70% of the circumference of the tunnel, more preferably by at least 90% of the circumference of the tunnel, most preferably by the entire circumference of the tunnel Tunnel (10), and that the coating (12) in the axial direction of the tunnel (10) over a length (L) of at least 30% of the diameter (D) of the tunnel (10), preferably of at least 70% of the diameter (D) of the tunnel (10), more preferably of at least 100% of the diameter (D) of the tunnel (10), most preferably of at least 130% of the diameter (D) of the tunnel (10).